1
22
23 package com.liferay.portal.velocity;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.kernel.util.GetterUtil;
28 import com.liferay.portal.util.PropsKeys;
29 import com.liferay.portal.util.PropsUtil;
30
31 import java.io.InputStream;
32
33 import org.apache.commons.collections.ExtendedProperties;
34 import org.apache.velocity.exception.ResourceNotFoundException;
35 import org.apache.velocity.runtime.resource.Resource;
36 import org.apache.velocity.runtime.resource.loader.ResourceLoader;
37
38
43 public class LiferayResourceLoader extends ResourceLoader {
44
45 private static VelocityResourceListener[] _listeners =
46 new VelocityResourceListener[0];
47
48 public static void setListeners(String[] listeners) {
49 _listeners = new VelocityResourceListener[listeners.length];
50
51 for (int i = 0; i < listeners.length; i++) {
52 try {
53 _listeners[i] = (VelocityResourceListener)Class.forName(
54 listeners[i]).newInstance();
55 }
56 catch (Exception ex) {
57 _log.error(ex);
58
59 _listeners[i] = null;
60 }
61 }
62 }
63
64 public void init(ExtendedProperties props) {
65 boolean cachingOn = GetterUtil.getBoolean(PropsUtil.get(
66 PropsKeys.VELOCITY_ENGINE_RESOURCE_MANAGER_CACHE_ENABLED));
67 int modificationCheckInterval = GetterUtil.getInteger(PropsUtil.get(
68 PropsKeys.
69 VELOCITY_ENGINE_RESOURCE_MANAGER_MODIFICATION_CHECK_INTERVAL));
70
71 setCachingOn(cachingOn);
72 setModificationCheckInterval(modificationCheckInterval);
73 }
74
75 public InputStream getResourceStream(String source)
76 throws ResourceNotFoundException {
77
78 if (_log.isDebugEnabled()) {
79 _log.debug("Get resource for " + source);
80 }
81
82 InputStream is = null;
83
84 for (int i = 0; (is == null) && (i < _listeners.length); i++) {
85 if (_listeners[i] != null) {
86 if (is == null) {
87 is = _listeners[i].getResourceStream(source);
88 }
89 }
90 }
91
92 if (is == null) {
93 if (_log.isDebugEnabled()) {
94 _log.debug("Could not find " + source);
95 }
96
97 throw new ResourceNotFoundException(source);
98 }
99
100 if (_log.isDebugEnabled()) {
101 _log.debug("Successfully got " + source);
102 }
103
104 return is;
105 }
106
107 public long getLastModified(Resource resource) {
108 if (_log.isDebugEnabled()) {
109 _log.debug("Get last modified for " + resource.getName());
110 }
111
112 return 0;
113 }
114
115 public boolean isSourceModified(Resource resource) {
116 if (_log.isDebugEnabled()) {
117 _log.debug("Check modified status for " + resource.getName());
118 }
119
120 return false;
121 }
122
123 private static Log _log =
124 LogFactoryUtil.getLog(LiferayResourceLoader.class);
125
126 }